IntroductionWARNINGSee the Important Safety and Product Information guide in the product box for product warnings and otherimportant information.Device OverviewBattery cover D-ringMicro-USB port (under battery cover)Installing the BatteriesYou can use alkaline, NiMH, or lithium AAA batteries. Use NiMH or lithium batteries for best results.1 Loosen the fabric strap that covers the battery door.2 Turn the D-ring counter-clockwise, and pull up to open the battery door.3 Insert two AAA batteries, observing polarity.NOTE: You should verify the gasket and battery compartment are free of debris.4 Close the battery door, and turn the D-ring clockwise.Long-Term StorageWhen you do not plan to use the device for several months, remove the batteries. Stored data is not lost whenbatteries are removed.Introduction 1